Related to bug #158941, this bug involves specially positioned first-child content displacing bullets in list items. This test-case shows that the problem is not limited to floated content, but also appears with relatively positioned content which should still technically remain within the flow of the document.
Two lists follow, each item containing an h4 header as the first-child. The first list shows the default style behaviour, while the CSS style position:relative; has been applied the h4 tags in the second list. The bullets in the second list are shifted down to the first row of statically (default) positioned inline content.